Saudi Aramco Tatweer Petroleum Saino Saudi Gas Ltd. Nobel Oil
Abraj Energy Services HRTC Drilling Kardoos Holding Dewan Drilling............
Archer - The Well Company Allis Chalmers Hydarsun Lee Energy Services........
Investcorp Gulf Capital Highline Capital Jana Partners........
McKinsey & Co. Boston Consulting Group Price Waterhouse Coopers Ernst & Young......
Nogaholding TAQA Saudi Arabia .
